SN8314 : Limestone with chert banding

taken 28 years ago, near to Craig-y-Nos, Powys, Great Britain

Limestone with chert banding
Limestone with chert banding
Group: Carboniferous Limestone, Formation: Upper Limestone. The chert here defines the bedding planes as they were deposited from a siliceous ooze at the same time as the limestone. The presence of chert lenses in joints does infer that some at least was post depositional.
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SN8314, 14 images   (more nearby )
Photographer
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Date Taken
September 1989   (more nearby)
Submitted
Wednesday, 18 May, 2005
Category
Geological feature   (more nearby)
Subject Location
OSGB36: geotagged! SN 831 143 [100m precision]
WGS84: 51:48.9040N 3:41.8356W
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Image classification(about): Geograph (First for SN8314) · First in 5 Years (TPoint) (about)
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